Commit | Line | Data |
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e1f60b29 NM |
1 | /* |
2 | * Generic OPP Interface | |
3 | * | |
4 | * Copyright (C) 2009-2010 Texas Instruments Incorporated. | |
5 | * Nishanth Menon | |
6 | * Romit Dasgupta | |
7 | * Kevin Hilman | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | */ | |
13 | ||
14 | #ifndef __LINUX_OPP_H__ | |
15 | #define __LINUX_OPP_H__ | |
16 | ||
17 | #include <linux/err.h> | |
03ca370f | 18 | #include <linux/notifier.h> |
e1f60b29 | 19 | |
47d43ba7 | 20 | struct dev_pm_opp; |
313162d0 | 21 | struct device; |
e1f60b29 | 22 | |
47d43ba7 | 23 | enum dev_pm_opp_event { |
129eec55 | 24 | OPP_EVENT_ADD, OPP_EVENT_REMOVE, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE, |
03ca370f MH |
25 | }; |
26 | ||
e1f60b29 NM |
27 | #if defined(CONFIG_PM_OPP) |
28 | ||
47d43ba7 | 29 | unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp); |
e1f60b29 | 30 | |
47d43ba7 | 31 | unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp); |
e1f60b29 | 32 | |
19445b25 BZ |
33 | bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp); |
34 | ||
5d4879cd | 35 | int dev_pm_opp_get_opp_count(struct device *dev); |
3ca9bb33 | 36 | unsigned long dev_pm_opp_get_max_clock_latency(struct device *dev); |
655c9df9 | 37 | unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev); |
21743447 | 38 | unsigned long dev_pm_opp_get_max_transition_latency(struct device *dev); |
4eafbd15 | 39 | struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev); |
e1f60b29 | 40 | |
47d43ba7 NM |
41 | struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, |
42 | unsigned long freq, | |
43 | bool available); | |
e1f60b29 | 44 | |
47d43ba7 NM |
45 | struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, |
46 | unsigned long *freq); | |
e1f60b29 | 47 | |
47d43ba7 NM |
48 | struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, |
49 | unsigned long *freq); | |
e1f60b29 | 50 | |
5d4879cd NM |
51 | int dev_pm_opp_add(struct device *dev, unsigned long freq, |
52 | unsigned long u_volt); | |
129eec55 | 53 | void dev_pm_opp_remove(struct device *dev, unsigned long freq); |
e1f60b29 | 54 | |
5d4879cd | 55 | int dev_pm_opp_enable(struct device *dev, unsigned long freq); |
e1f60b29 | 56 | |
5d4879cd | 57 | int dev_pm_opp_disable(struct device *dev, unsigned long freq); |
e1f60b29 | 58 | |
5d4879cd | 59 | struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev); |
7de36b0a VK |
60 | int dev_pm_opp_set_supported_hw(struct device *dev, const u32 *versions, |
61 | unsigned int count); | |
62 | void dev_pm_opp_put_supported_hw(struct device *dev); | |
01fb4d3c VK |
63 | int dev_pm_opp_set_prop_name(struct device *dev, const char *name); |
64 | void dev_pm_opp_put_prop_name(struct device *dev); | |
9f8ea969 VK |
65 | int dev_pm_opp_set_regulator(struct device *dev, const char *name); |
66 | void dev_pm_opp_put_regulator(struct device *dev); | |
6a0712f6 | 67 | int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq); |
e1f60b29 | 68 | #else |
47d43ba7 | 69 | static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp) |
e1f60b29 NM |
70 | { |
71 | return 0; | |
72 | } | |
73 | ||
47d43ba7 | 74 | static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp) |
e1f60b29 NM |
75 | { |
76 | return 0; | |
77 | } | |
78 | ||
19445b25 BZ |
79 | static inline bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp) |
80 | { | |
81 | return false; | |
82 | } | |
83 | ||
5d4879cd | 84 | static inline int dev_pm_opp_get_opp_count(struct device *dev) |
e1f60b29 NM |
85 | { |
86 | return 0; | |
87 | } | |
88 | ||
3ca9bb33 VK |
89 | static inline unsigned long dev_pm_opp_get_max_clock_latency(struct device *dev) |
90 | { | |
91 | return 0; | |
92 | } | |
93 | ||
655c9df9 VK |
94 | static inline unsigned long dev_pm_opp_get_max_volt_latency(struct device *dev) |
95 | { | |
96 | return 0; | |
97 | } | |
98 | ||
21743447 VK |
99 | static inline unsigned long dev_pm_opp_get_max_transition_latency(struct device *dev) |
100 | { | |
101 | return 0; | |
102 | } | |
103 | ||
4eafbd15 BZ |
104 | static inline struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev) |
105 | { | |
106 | return NULL; | |
107 | } | |
108 | ||
47d43ba7 | 109 | static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, |
e1f60b29 NM |
110 | unsigned long freq, bool available) |
111 | { | |
112 | return ERR_PTR(-EINVAL); | |
113 | } | |
114 | ||
47d43ba7 | 115 | static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, |
e1f60b29 NM |
116 | unsigned long *freq) |
117 | { | |
118 | return ERR_PTR(-EINVAL); | |
119 | } | |
120 | ||
47d43ba7 | 121 | static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, |
e1f60b29 NM |
122 | unsigned long *freq) |
123 | { | |
124 | return ERR_PTR(-EINVAL); | |
125 | } | |
126 | ||
5d4879cd | 127 | static inline int dev_pm_opp_add(struct device *dev, unsigned long freq, |
e1f60b29 NM |
128 | unsigned long u_volt) |
129 | { | |
130 | return -EINVAL; | |
131 | } | |
132 | ||
129eec55 VK |
133 | static inline void dev_pm_opp_remove(struct device *dev, unsigned long freq) |
134 | { | |
135 | } | |
136 | ||
5d4879cd | 137 | static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq) |
e1f60b29 NM |
138 | { |
139 | return 0; | |
140 | } | |
141 | ||
5d4879cd | 142 | static inline int dev_pm_opp_disable(struct device *dev, unsigned long freq) |
e1f60b29 NM |
143 | { |
144 | return 0; | |
145 | } | |
03ca370f | 146 | |
5d4879cd NM |
147 | static inline struct srcu_notifier_head *dev_pm_opp_get_notifier( |
148 | struct device *dev) | |
03ca370f MH |
149 | { |
150 | return ERR_PTR(-EINVAL); | |
151 | } | |
7de36b0a VK |
152 | |
153 | static inline int dev_pm_opp_set_supported_hw(struct device *dev, | |
154 | const u32 *versions, | |
155 | unsigned int count) | |
156 | { | |
157 | return -EINVAL; | |
158 | } | |
159 | ||
160 | static inline void dev_pm_opp_put_supported_hw(struct device *dev) {} | |
161 | ||
01fb4d3c VK |
162 | static inline int dev_pm_opp_set_prop_name(struct device *dev, const char *name) |
163 | { | |
164 | return -EINVAL; | |
165 | } | |
166 | ||
167 | static inline void dev_pm_opp_put_prop_name(struct device *dev) {} | |
168 | ||
9f8ea969 VK |
169 | static inline int dev_pm_opp_set_regulator(struct device *dev, const char *name) |
170 | { | |
171 | return -EINVAL; | |
172 | } | |
173 | ||
174 | static inline void dev_pm_opp_put_regulator(struct device *dev) {} | |
175 | ||
6a0712f6 VK |
176 | static inline int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) |
177 | { | |
178 | return -EINVAL; | |
179 | } | |
180 | ||
a96d69d1 | 181 | #endif /* CONFIG_PM_OPP */ |
e1f60b29 | 182 | |
d6561bb2 | 183 | #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF) |
8f8d37b2 VK |
184 | int dev_pm_opp_of_add_table(struct device *dev); |
185 | void dev_pm_opp_of_remove_table(struct device *dev); | |
186 | int dev_pm_opp_of_cpumask_add_table(cpumask_var_t cpumask); | |
187 | void dev_pm_opp_of_cpumask_remove_table(cpumask_var_t cpumask); | |
188 | int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask); | |
189 | int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask); | |
d6561bb2 | 190 | #else |
8f8d37b2 | 191 | static inline int dev_pm_opp_of_add_table(struct device *dev) |
d6561bb2 SG |
192 | { |
193 | return -EINVAL; | |
194 | } | |
129eec55 | 195 | |
8f8d37b2 | 196 | static inline void dev_pm_opp_of_remove_table(struct device *dev) |
129eec55 VK |
197 | { |
198 | } | |
8d4d4e98 | 199 | |
8f8d37b2 | 200 | static inline int dev_pm_opp_of_cpumask_add_table(cpumask_var_t cpumask) |
8d4d4e98 VK |
201 | { |
202 | return -ENOSYS; | |
203 | } | |
204 | ||
8f8d37b2 | 205 | static inline void dev_pm_opp_of_cpumask_remove_table(cpumask_var_t cpumask) |
8d4d4e98 VK |
206 | { |
207 | } | |
208 | ||
8f8d37b2 | 209 | static inline int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask) |
8d4d4e98 VK |
210 | { |
211 | return -ENOSYS; | |
212 | } | |
213 | ||
8f8d37b2 | 214 | static inline int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask) |
8d4d4e98 VK |
215 | { |
216 | return -ENOSYS; | |
217 | } | |
d6561bb2 SG |
218 | #endif |
219 | ||
e1f60b29 | 220 | #endif /* __LINUX_OPP_H__ */ |